Bone mineral content of lumbar spine (L1-L4) was measured by DEXA (Hologic QDR1000).
In this study, bone mineral densities (BMDs) of an individual lumbar spine were investigated to relate with aging and sex.
The BMD value at the lower lumbar spine was greater than that at the upper spine (L1) in each decade age and both sexes.
The bone loss of each spine with aging was observed more remarkably in female, but the bene loss rate of each spine was not so significant.
Those results have relevance to the fact that osteoporotic compression fractures are of frequent occurrence in female and at upper lumbar spine.
